This document contains interview notes with Boris Abolyan and questions for Mario Blumenfeld, co-founders of the firm 'Delko-2,' which was linked to the lease of space used in the 1999 Guryanova Street bombing. Abolyan describes being detained on September 9, 1999, the night of the explosion, and alleges he was fraudulently charged with an administrative offense to justify his detention while in police custody. He claims to have seen a composite sketch of 'Laipanov' (an alias for Achimez Gochiyayev) arriving via fax on a police bus shortly after the blast. Crucially, Abolyan, a construction engineer, asserts the bombing was professionally executed at a specific structural joint and claims he saw development plans at the Moscow Mayor's Office depicting new towers at the site before the house was destroyed. The document also details police protection rackets involving OMON and Petrovka officers who extorted their firm.